view(点击上传按钮) -> controller (第一次保存上传的信息) ->view(点击上传按钮) -> controller (第二次保存上传的信息)
不用session和cookie
怎么在controller (第二次保存上传的信息) 时获取 controller (第一次保存上传的信息)
回复讨论(解决方案)
可保存于 session、cookie、文件、数据库 或其他公共资源中
除 session 和 cookie 外都需要自己维护一个唯一的识别键
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